PN16 Worm Gear Hard Back Seat Wafer Butterfly Valve EN593
Basic Info of Hard Back Seat Butterfly Valve with Worm Gear
- hard back seat wafer butterfly valve: can achieve 0 leakage, improving the durability and service life of the valve. This design reduces friction and wear, extending valve operation time and reducing maintenance and replacement costs.
- butterfly valves with worm gear : The worm gear can make the opening and closing of the valve more convenient and precise.
- wafer type butterfly valve: simple structure, compact size, easy installation and cost saving.
- EN593 butterfly valve: A universal standard that can be applied to various industrial fields and application scenarios, such as chemical industry, water treatment, pharmaceuticals, etc.
Parts Material Configuration
| Parts | Ductile Iron type | WCB type | Stainless Steel Type | Duplex Stainless Steel Type |
| Body | Cast Iron(GG25) Ductile Iron(GGG40/50) |
A216 A217 A105(forged) |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M |
2205 2507 1.4529 |
| Disc | Ductile Iron with Ni coated Ductile Iron with nylon coated Ductile Iron with PTFE/EPDM lined Stainless Steel Duplex Stainless Steel Bronze |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M 2205 2507 1.4529 |
2205 2507 1.4529 |
|
| Seat | NBR, EPDM, PTFE, Viton, Hypalon, Silicon, PFA | |||
| Stem | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel | Duplex Stainless Steel, Monel | ||
| Actuator | Hand Lever, Worm Gear, Electric, Pneumatic | |||
Paraments of Worm Gear Butterfly Valve
| SIZE | A | øP | 4-ø | a° | L | ø1 | ø2 | 4-d | □E | H | L1 | ∅3 | ||||||
| PN10 | PN16 | CL150 | PN10 | PN16 | CL150 | PN10 | PN16 | CL150 | ||||||||||
| DN350 | 368 | ∅460 | ø470 | ∅476.2 | 4-∅23 | 4-∅28 | 4-ø28.4 | 11.25° | 11.25° | 22.5° | 76.5 | ∅140 | ø102 | 4-ø12 | 22 | 45 | 174 | 460 |
| DN400 | 400 | ø515 | ø525 | ø539.7 | 4-ø28 | 4-ø31 | 4-ø28.4 | 11.25° | 11.25° | 11.25° | 85.7 | ø175 | ∅140 | 4-ø18 | 27 | 50 | 195 | 460 |
| DN450 | 422 | ø565 | ø585 | ø577.8 | 4-ø28 | 4-ø31 | 4-∅31.8 | 9° | 9° | 11.25° | 104.6 | ø175 | ø140 | 4-ø18 | 27 | 50 | 195 | 550 |
| DN500 | 480 | ø620 | ∅650 | ø635 | 4-∅28 | 4-ø34 | 4-ø31.8 | 9° | 9° | 9° | 130.28 | ø175 | ø140 | 4-ø18 | 32 | 55 | 195 | 600 |
| DN600 | 562 | ø725 | ø770 | ø749.3 | 4-∅31 | 4-ø37 | 4-∅35.1 | 9° | 9° | 9° | 151.36 | ∅210 | ø165 | 4-∅23 | 36 | 68 | 240 | 700 |
Note: We can produce DN300-DN2000 wafer butterfly valve with worm gear, so more specific data, please contact us.
Manufacture Process of Butterfly Valve
Certificates of Zfa Valve
WRAS
CE
ISO 9001
EAC Russia
